C22213331333133313112331323133313331333133313231211111211111233112121   >>    C2221333133313331311233132313331333133313331323121111121111123311212   <<    C22213331333133313112331323133313331333133313231211111211111233112123   >>      C22213331333133313112331323133313331333133313231211111211111233112122   >>